Chances are you batteries are beyond their usable life and need replacement -OR- you have a disconnect between either battery and the chair. Please check to make sure the circuit breaker isn't popped, all the fuses under the shrink-wrap on the positive terminals are good and that the battery connectors are seated properly. If the batteries each measure 12-14 volts at the battery post while the chair is plugged in and either drop below 10volts when unplugged then your batteries need replacing.
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Chances are you batteries are beyond their usable life and need replacement -OR- you have a disconnect between either battery and the chair. Please check to make sure the circuit breaker isn't popped, all the fuses under the shrink-wrap on the positive terminals are good and that the battery connectors are seated properly. If the batteries each measure 12-14 volts at the battery post while the chair is plugged in and either drop below 10volts when unplugged then your batteries need replacing.